The Measure panel's drawing scale had its page side fixed in PDF points, so
"1 = 50 mm" was stored as 1 pt = 50 mm and every length came out
72 / 25.4 = 2.835 times too big (a 1:50 plan needed 50 x 25.4 / 72 = 17.64).
The page side now carries a unit (pt, in, mm, cm). It defaults to the
real-world unit, and to the display unit when that is not one of the four.
Scale::ratio converts it to points before building the /X, /D and /A number
formats (ISO 32000-2 12.9) and writes /R as entered ("1 mm = 50 mm").
measure_scale takes the same ratio through page_distance and page_unit.
Scales read from files, Scale::calibrate and units_per_point are unchanged.
Fixes#2752
* M12: add calibrated 2D measurement tools
* M12: harden measurement tools for landing (#208)
Bounded snap targets (endpoints only for accepted segments, page-wide cap),
lenient extraction (deep q nesting and undecodable streams are skipped and
reported), per-page snap cache, measure::list reports unsupported entries
instead of failing, closed polygons with a repeated vertex, printable unit
labels (m²), cached panel listing, WinAnsi captions, indirect /VP kept,
measure.export skipped in the command test like other pickers, missing
translations, honest parity (scale and distance partial) and ROADMAP.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---------
Co-authored-by: Brandon Thomas <echelon@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Guillem Hermida
